/**
 * This file is part of AppStoreBot.
 *
 *  AppStoreBot is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  AppStoreBot is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with AppStoreBot.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
package lu.pragmaconsult.appstorebot.itunes;

import static lu.pragmaconsult.appstorebot.itunes.Constants.AUTHENTICATION_URL;
import static lu.pragmaconsult.appstorebot.itunes.Constants.HOST_NAME;
import static lu.pragmaconsult.appstorebot.itunes.Constants.I_TUNES_CONNECT_URL;
import static lu.pragmaconsult.appstorebot.itunes.Constants.PORT;
import static lu.pragmaconsult.appstorebot.itunes.Constants.PROTOCOL;
import lu.pragmaconsult.appstorebot.BotContext;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpMethod;
import org.apache.commons.httpclient.cookie.CookiePolicy;
import org.apache.commons.httpclient.methods.GetMethod;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * TODO: Type comment
 * 
 * @author Wilfried Vandenberghe (wilfried.vandenberghe at pragmaconsult.lu)
 */
class ConnectBotState extends AbstractBotState {

	private static final Logger logger = LoggerFactory
			.getLogger(ConnectBotState.class);

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * lu.pragmaconsult.appstorebot.itunes.AbstractBotState#createHttpMethod
	 * (lu.pragmaconsult.appstorebot.BotContext,
	 * org.apache.commons.httpclient.HttpClient)
	 */
	@Override
	protected HttpMethod createHttpMethod(BotContext context,
			HttpClient httpClient) {
		if (context.isVerbose()) {
			logger.info("Connecting to iTunes Connect");
		}

		httpClient = new HttpClient();
		setHttpClient(httpClient);

		httpClient.getHostConfiguration().setHost(HOST_NAME, PORT, PROTOCOL);
		httpClient.getParams().setCookiePolicy(
				CookiePolicy.BROWSER_COMPATIBILITY);

		return new GetMethod(I_TUNES_CONNECT_URL);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * lu.pragmaconsult.appstorebot.itunes.AbstractBotState#processResponseBody
	 * (lu.pragmaconsult.appstorebot.BotContext, java.io.InputStream)
	 */
	@Override
	protected void processResponseBody(BotContext context, HttpMethod method) {
		try {
			String url = new HtmlParser(method.getResponseBodyAsStream())
					.getFormAction();
			context.setContextAttribute(AUTHENTICATION_URL, url);
		} catch (Exception e) {
			throw new IllegalStateException(e);
		}
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see lu.pragmaconsult.appstorebot.itunes.AbstractBotState#getNextState()
	 */
	@Override
	protected BotState getNextState() {
		return new AuthenticationBotState();
	}

}
